Release 1.32.0

v1.32.0 (2024-04-11)

Context

• No changes.

Traces

• Remove the Jaeger Exporter.
  (#3964)

Metrics

• Clarify that exemplar reservoir default may change in a minor version.
  (#3943)
• Add option to disable target info metric to Prometheus exporters.
  (#3872)
• Add synchronous gauge entry to sum monotonic table.
  (#3977)

Logs

• Refine description of Instrumentation Scope.
  (#3855)
• Clarify that ReadableLogRecord and ReadWriteLogRecord can be represented using a single type.
  (#3898)
• Fix what can be modified via ReadWriteLogRecord.
  (#3907)

Events

• No changes.

Resource

• No changes.

OpenTelemetry Protocol

• No changes.

Compatibility

• Prometheus compatibility: Clarify naming of the target info metric, and differences between various Prometheus formats.
  (#3871)
• Prometheus compatibility: Clarify that the service triplet is required to be unique by semantic conventions.
  (#3945)
• Prometheus: represent Prometheus Info, StateSet and Unknown-typed metrics in OTLP.
  (#3868)
• Update and reorganize the prometheus sdk exporter specification.
  (#3872)

SDK Configuration

• Define OTEL_EXPERIMENTAL_CONFIG_FILE to ignore other env vars, add env var substitution default syntax.
  (#3948)
• Clarify environment variable substitution is not recursive
  (#3913)
• Allow env: prefix in environment variable substitution syntax.
  (#3974)
• Add simple scope configuration to Tracer, Meter, Logger (experimental).
  (#3877)

Common

• No changes.

Supplementary Guidelines

• No changes.

New Contributors

• @grandwizard28 made their first contribution in #3947
• @steverao made their first contribution in #3955
• @dmathieu made their first contribution in #3984